EP0142626A1 - Aufzeichnungsgerät für digitale Daten - Google Patents

Aufzeichnungsgerät für digitale Daten Download PDF

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Publication number
EP0142626A1
EP0142626A1 EP84109595A EP84109595A EP0142626A1 EP 0142626 A1 EP0142626 A1 EP 0142626A1 EP 84109595 A EP84109595 A EP 84109595A EP 84109595 A EP84109595 A EP 84109595A EP 0142626 A1 EP0142626 A1 EP 0142626A1
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EP
European Patent Office
Prior art keywords
data
labels
information
digital
parameter field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84109595A
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English (en)
French (fr)
Inventor
Guy William Whitsey Mc Nally
Roger Dr. Lagadec
Philip Stuart Gaskell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harman International Industries Inc
Original Assignee
Willi Studer AG Fabrik fuer Elektronische Apparate
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Willi Studer AG Fabrik fuer Elektronische Apparate filed Critical Willi Studer AG Fabrik fuer Elektronische Apparate
Publication of EP0142626A1 publication Critical patent/EP0142626A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1201—Formatting, e.g. arrangement of data block or words on the record carriers on tapes
    • G11B20/1202—Formatting, e.g. arrangement of data block or words on the record carriers on tapes with longitudinal tracks only
    • G11B20/1204—Formatting, e.g. arrangement of data block or words on the record carriers on tapes with longitudinal tracks only for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/036—Insert-editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/324—Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/325—Subcodes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G11B2220/91—Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte
    • G11B2220/913—Digital audio tape [DAT] format
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/032—Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes

Definitions

  • This invention relates to an apparatus for recording of digital data corresponding to signals transmitted through an input data channel and to be recorded on a corresponding track on a recording medium.
  • the object of the present invention as defined in the claims is therefore to provide an apparatus for recording of auxiliary digital data capable of handling additional information related to the primary digital data transmitted through the input channel and which additional information can be edited so as to control editing conditions for the primary digital data itself.
  • apparatus for recording digital primary data corresponding to signals transmitted through one or more input data channels and recorded on one or more tracks on a recording medium, characterised by means responsive to auxiliary data attached to said primary data, said auxiliary data consisting of control instructions and information related to the said digital primary data, said means carrying out record/reading operations of said auxiliary data on at least one separate track on the recording medium and executing instructions acting upon said digital primary data and said means estbalishing a formatted structure for the auxiliary data related to the structure of the digital primary data corresponding to the signals.
  • auxiliary data is in formatted labels it is possible to edit this data and provide "intèlligent" data referring to high-level applications rather than to the simple act of recording a signal in a particular way. Labels can in particular be written, edited, modified, moved, erased, read and executed independently of the already recorded digital audio signals, whereas the data entering the CTL track are predetermined at the instant of recording and may not be modified without making it impossible to read the digital audio data correctly.
  • Labels it is possible, for example, to first make a recording, then at a later stage to write copyright information, editing marks, gain changes etc.
  • Labels are freely selectable additional information referring to applications such as processing, protection etc of an audio signal being recorded or already recorded. Implementation of the invention is made possible by a recorder with a set of heads and processing circuitry making it possible to handle the additional data, without changing the digital audio signals to which they refer.
  • the additional information makes it possible to greatly increase the flexibility and economy of operation of recorders, as a great quantity of data which could otherwise be lost or forgotten now always accompanies the digital audio signals.
  • Figure 1 shows an example of an apparatus for recording of digital data.
  • Such an apparatus may consist of a digital tape recorder, a magnetic disc recorder, an optical recorder or other device for recording and replaying of digital data.
  • the illustrated apparatus is a digital tape recorder, comprising reels 2 and 3 carrying a tape 4 as a recording medium.
  • Tape drive, tape motion controls, output electronics amplifiers are well known parts of such a digital tape recorder and are therefore not shown in Fig 1.
  • the heads 5 and 6 are multichannel-heads connected to the electronics 7 by a plurality of lines 9 and 10.
  • An additional input channel 11 and additional lines 12 and 13 are provided for carrying additional data relating to data transmitted in the channel 8.
  • a piece 14 of the tape 4 is shown twisted through 90 to illustrate four audio tracks 15 for the four channels 8 and a dedicated track 16 for the channel 11.
  • Figure 2 shows an example of a structure for the auxiliary data recorded on the dedicated track 16.
  • a transmission block 18 of say 192 bits comprises four labels 19,'20, 21 and 22 of 48 bits each.
  • Each label 19, 20, 21 and 22 of the block 18 is subdivided into an identification field 23 and a parameter field 24 of 16 and 32 bits respectively in one example.
  • FIG. 3 A more detailed view of a part of the recording and replay electronics 7 is shown in figure 3.
  • Record heads 5, separately indicated as 5a, 5b, 5c usually being part of a head stack, are connected to an optional CTL-encoder 30, an encoder 31 for data representing primary data, e.g. digital audio signals and an encoder 32 for auxiliary data respectively.
  • the encoder 32 also referred to as labels encoder is preceded by an input processor 33 with inputs 34 from an interface, a keyboard or some other means for manual or automatic data entry.
  • input data channels 8 carrying already digitized audio information.
  • the above mentioned optional CTL-encoder is designed for encoding information inputted through lines 30a and of a type and at a rate as described in GB 2 080 997 but may not be necessary for the operation of the record and replay electronics 7, depending on the particular type of implementation chosen. In some cases, it can be for example supplemented by a simple Time Code encoder as used in state-of-the- art audio recorders.
  • the replay head 6b is connected through one or more lines 37 to a decoder 38 and the decoder 38 itself is connected through lines 39 to an execution processor 40.
  • CTL-data and labels or auxiliary data are each recorded on their own separate tracks on the recording medium 4.
  • the outputs of the optional CTL-decoder 35 (if implemented)., or of the Time Code Generator which may replace it in some applications, can, if required, also be connected to the execution processor 40.
  • FIG 4. An example of a possible structure of the execution processor 40 is shown in figure 4. This structure is especially designed for the execution of a crossfade or crossfiltering operation. Such an operation may further be combined with an editing operation.
  • a memory 43, a crossfiltering or crossfade unit 44 and a gain processor 45 are the means permitting specific instructions to be executed upon the digital data input through lines 39.
  • a comparator and read/write control unit 46 is connected to the memory 43 as well as to an identification unit 47.
  • the input data channels 8 carry audio signals, for example, which are digitized in conventional manner (by sampling and digital-to-analog conversion) in the record- and replay-electronics 7, fed to the lines 9 and recorded on the tracks 15 of the tape 4 by means of the recording head 5. Additional information accompanying the input data are input through the channel 11. Within the electronics 7 the additional information is formatted into a structure such as that of Fig 2. When information or signals are entered into the record and replay electronics 7 through channels 8, related information or control instructions are input through one of the inputs 34 referred to as channel 11 in figure 1. This may happen manually through any well known entry device such as a keybaord, a computer, or other digital signal source connected to the inputs 34.
  • the labels input processor 33 carries out the usual digitizing and formatting operations that belong to the state of the art and delivers auxiliary data or labels formatted as described later on. These labels are encoded in the encoder 32 like the digital signals which are encoded in the encoder 31. A different encoding operation takes place in the op tional CTL-encoder 30 which receives parameters and other information called CTL-data and referring exclusively to the operation of the recorder. Therefore both the format and the actual information contents of the CTL-data is essentially different from that of the digital audio data in channels 8 and from the auxiliary data. All these encoded data are then recorded on their respective tracks on the recording medium 4.
  • primary data are read from the tape 4 by the head 6b and, transmitted through lines 37 to the decoder 38 where they are decoded according to well known decoding operations.
  • Decoded data are transmitted through lines 39 to the execution processor 40.
  • the labels are read from the recording medium 4 by the replay head 6a and transmitted to the decoder 36 and then to the execution processor 40.
  • the primary data from lines 39 are possibly processed in the execution processor 40.
  • Processed data leave this processor 40 through lines 41.
  • Auxiliary output data are available on line 42 if required; they can serve for example for the monitoring of control instructions performed in the labels execution processor 40.
  • Outputs 48 thereof may represent synchronisation pulses, position of the recording medium, control of emphasis, format identification to be conveyed to the decoder 38 etc.
  • decoded labels are transmitted through a line 49 to the identification unit 47.
  • This unit is capable of a correct interpretation of the labels and of issuing corresponding control signals.
  • the identification unit 47 outputs signals controlling write or read address generators by means of the comparison and read write control unit 46 which also receives information on the instantaneous position of the recording medium 4 from the CTL-decoder or Time Code decoder 35 via line 48a, as described in copending British Patent Application No 8323111.
  • signals are transmitted through lines 50, 51 and 52, 53. In this way digital signals transmitted to the memory 43 through lines 39 are not read out or not written in between edit points as described in the above mentioned application.
  • Crossfade or crossfiltering parameters contained in the labels are transmitted to a crossfade or crossfiltering unit 44 through a line 54.
  • This unit 44 outputs of one or more channels are combined into a single signal in a well known manner.
  • the gain processor 45 comprises a register for storing new gain instruction parameters, which can be updated whenever a relevant label specifies a new change in gain, a unit for changing the gain in an abrupt or stepwise way, and a digital multiplier which submits the digital primary signals to the desired gain changes. Updating of the gain values as well as start and stop of gain changes are controlled by means of signals outputted from the identification unit 47 through line 55.
  • the auxiliary data structure is preferably related to the structure in which digital data on the tracks 15 are recorded.
  • the best mode of putting data corresponding to additional information into a structure or a format is to give them a bit rate and a structure or a format which matches the format used for the same data for transmission purposes. In this way, full transparency in recording, replay and transmission is obtained. If the apparatus has to cooperate with AES/EBU interfaces, this means that 1 bit of auxiliary data on track 16 corresponds to one sample of digital data on one of the tracks 15. This corresponds to 48 kb/s per track 15 or channel 8 if the sampling rate is selected as 48 kHz or 44.1 kb/s if the sampling rate is selected as 44.1 kHz.
  • each block 18 is subdivided into four words or labels 19, 20, 21, 22.
  • the electronics 7 has to control the output through lines 9 and 12 in a strict interdependence. The electronics 7 will treat the auxiliary data according to the usual and well known error detection and correction methods.
  • One dedicated track 16 preferably carries information relating to more than one track 15 for digital data. In this case well known multiplexing techniques are used to accommodate the auxiliary data for all the tracks 15 on the single track 16.
  • the formatting procedure taking place in the electronics 7 is further designed to subdivide the labels 19, 20, 21, 22 into an identification field 23 and a parameter field 24.
  • the parameter field 24 carries numerical or alphanumerical information
  • the identification field 23 carries information identifying the instruction, which may make use of the information contained in the parameter field 24.
  • a label might carry the meaning of increasing playback gain by an amount of 3 dB.
  • the instruction to increase playback gain is located in the identification field 23, whereas the information containing the amount by which the gain is to be increased is located in the parameter field 24.
  • a number of classes of applications or instructions can also be defined. For this purpose a part of the identification field 23 may be designated to contain a code with which the different classes can be identified.
  • Each class covers a well defined field of applictions, such as recording, post-production, broadcast or compact-disc mastering, thus permitting the uses of that class to allocation the labelling capacity appropriately.
  • a further part of the identification field 23 has to contain information about the security level of the labels 19, 20, 21, 22.
  • the labels may not all have the same importance to the data recorded on tracks 15. Therefore important labels have to be repeated several times to ensure that the instruction they carry will be executed. This is because of the possibility of recording and replay errors, in particular when dealing with damaged, spliced or dusty tapes or imperfect recording media in general.
  • the identifiction field 23 also has to accommodate countdown information relating to specific position on the tape 4 too.
  • This count-down information enables e.g. a specified number of labels, all pointing to the same position on the tape 4 and all of them carrying the same instructions and parameters, to be correctly received in the correct sequence before execution is permitted. In this way it is ensured that the right action takes place at the right position on the tape 4.
  • the increase of playback gain starting from a particular position on the tape 4 may be mentioned.
  • labels By their nature, it may be necessary to edit labels. Some labels will generally have low importance, so that it will not matter if they are moved from one location to another on the tape, 10 or are even suppressed altogether. Important labels, however, will not be allowed to be shifted or overwritten by less important labels. A simple way of ensuring this is to use part of the identification field to carry priority information, low priority labels not being permitted to either move or overwrite labels of higher priority.
  • telephony speech may provide information which is to be added to digital data as auxiliary data and therefore has to be directed to the dedicated track 16 on recording.
  • the ADPCM format in which such information is provided carries data at a speed of 32 kb/s.
  • the proposed label structure for auxiliary information carries data at a speed up to 48 kb/s, the data transmitted by telephony speech are easily formatted by the electronics 7.
  • Compact disc subcoding requires a total bit rate of 58.8 kb/s. This corresponds exactly to the transmission rate of the parameter field of the labels of two channels operating at 44.1 kHz.
  • a two channel-recorder operating at 44.1 kHz can therefore carry all subcoding information, in a real-time-editable form on its label tracks or dedicated tracks 16.
  • mixdown information can be written in the form of labels.
  • Information relating to the-legal property of a programme is also easy to put into the labels 19, 20, 21, 22.
  • Digital information may also be transmitted and recorded while coded by an encryption procedure.
  • information related to the encryption may be carried by the labels.
  • Another possibility for the use of labels is where information relating to an instantaneous compression and expansion characteristic of the digital audio samples is to be controlled.
  • Labels may also be used to control a variable or non-nominal tape speed or acceleration.
  • Label rate 1,000 words/second,,each label having 48 bits Structure of the label:
  • the individual symbols can be recorded with interleave and repetition for improved safety in recording and replay.
  • NICAM-3 The NICAM-3 system is described in "The Use of a Programmed Computer to Compare the Performance of Digital Companding Systems” G W McNally & N Gilchrist, EBU Review, Dec 1979, pp 280-291.
  • the individual labels can also be complemented by other auxiliary data as delivered by a digital input interface prior to being formatted for error protection.
  • the individual 48-bit labels possibly supplemented by other auxiliary data, can be divided into 8- or 16-bit symbols which can themselves be recorded with error protection thanks to techniques such as added redundancy interleave, check words etc which are state of the art in digital recording today.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
EP84109595A 1983-08-26 1984-08-11 Aufzeichnungsgerät für digitale Daten Withdrawn EP0142626A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838323112A GB8323112D0 (en) 1983-08-26 1983-08-26 Recording of digital data
GB8323112 1983-08-26

Publications (1)

Publication Number Publication Date
EP0142626A1 true EP0142626A1 (de) 1985-05-29

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EP84109595A Withdrawn EP0142626A1 (de) 1983-08-26 1984-08-11 Aufzeichnungsgerät für digitale Daten

Country Status (4)

Country Link
US (1) US4562489A (de)
EP (1) EP0142626A1 (de)
JP (1) JPS60107771A (de)
GB (2) GB8323112D0 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192445A2 (de) * 1985-02-15 1986-08-27 Sony Corporation Aufzeichnungsverfahren und Aufzeichnungs- und/oder Wiedergabegerät
EP0216293A2 (de) * 1985-09-21 1987-04-01 Deutsche Thomson-Brandt GmbH Verfahren zur Aufzeichnung eines Signals auf einem Magnetband
EP0236009A2 (de) * 1986-02-26 1987-09-09 Sony Corporation Digitale Datenkodierung
WO1990004214A1 (en) * 1988-10-07 1990-04-19 Eastman Kodak Company Film information exchange system using dedicated magnetic tracks on film
DE4033993A1 (de) * 1989-10-27 1991-05-02 Pioneer Electronic Corp Aufzeichnungsmedium fuer digitale informationssignale und dafuer geeignete abspielvorrichtung
WO1991010997A1 (en) * 1990-01-19 1991-07-25 Hewlett-Packard Limited Storage of compressed data
EP0535300A1 (de) * 1991-09-30 1993-04-07 Pioneer Electronic Corporation Digitales Aufzeichnungs- und Wiedergabeverfahren
WO2013097793A1 (zh) * 2011-12-29 2013-07-04 华为技术有限公司 一种片上多核数据传输方法和装置

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165686A (en) * 1984-10-17 1986-04-16 Ezouri Fuad Akka A method of and apparatus for tape based sound reproduction
US5289451A (en) * 1984-11-29 1994-02-22 Canon Kabushiki Kaisha Optical information recording/reproduction apparatus including means for detecting the type of recording medium
US4858037A (en) * 1985-04-13 1989-08-15 Canon Kabushiki Kaisha Information signal recording and/or reproducing apparatus
US4769723A (en) * 1985-12-30 1988-09-06 Mcdonnel Douglas Helicopter Co. Multiplexed bus data encoder and decoder for facilitating data recording
CA1324436C (en) * 1986-08-08 1993-11-16 John J. Dwyer Display for modular dictation/transcription system
US4794474A (en) * 1986-08-08 1988-12-27 Dictaphone Corporation Cue signals and cue data block for use with recorded messages
SK28789A3 (en) * 1988-01-19 2000-06-12 Koninkl Philips Electronics Nv Method for transferring information, information carrier and device for carrying out this method
ATE130695T1 (de) * 1989-05-08 1995-12-15 Philips Electronics Nv Informationsaufzeichnungssystem, aufzeichnungsverfahren und aufzeichnungsträger zur anwendung in einem derartigen informationsaufzeichnungssystem.
WO1991000594A1 (en) * 1989-06-30 1991-01-10 Seagate Technology, Inc. Method for compensating for the unique mechanical and electrical characteristics of a disc drive
DE3943271A1 (de) * 1989-12-29 1991-07-04 Atis Assmann Gmbh Verfahren und schaltungsanordnung zum aufzeichnen und zum feststellen des vorhandenseins und zur wiedergabe von informationssignalen
NL9000039A (nl) * 1990-01-08 1991-08-01 Philips Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
JPH0453069A (ja) * 1990-06-20 1992-02-20 Tokico Ltd 情報記録媒体、情報記録装置およびその制御方法
JPH0490105A (ja) * 1990-08-02 1992-03-24 Sharp Corp 磁気記録再生装置およびそれに用いられる磁気テープ
US5262964A (en) * 1991-04-10 1993-11-16 International Business Machines Corporation Method and apparatus for variable playback speed of multimedia data interchange within a data processing system
DE4305960C1 (de) * 1993-02-26 1994-03-24 Grundig Emv Digitales Diktiersystem mit Schutzvorrichtung gegen unbefugtes Abhören
US5518325A (en) * 1994-02-28 1996-05-21 Compulog Disk label printing
DE4434034A1 (de) * 1994-09-23 1996-03-28 Thomson Brandt Gmbh Verfahren zur Markierung und/oder zur Auswertung von Markierungen von auf einem Speicherträger aufgezeichneten Informationen für Steuerungszwecke
US6246655B1 (en) 1996-10-17 2001-06-12 David Miller Programmable self-operating caddy-loaded compact disk duplication system
US6270176B1 (en) 1997-12-11 2001-08-07 Compulog Corporation Method and apparatus for printing labels on digital recording media
US6074031A (en) * 1997-12-11 2000-06-13 Compulog Corporation Method and apparatus for printing labels on digital recording media
JP2000021137A (ja) * 1998-06-30 2000-01-21 Sony Corp 編集装置
US6490664B1 (en) 1999-06-14 2002-12-03 International Business Machines Corporation Method and system for handling destage requests during shut-down in a log-structured array
JP2005339735A (ja) * 2004-05-28 2005-12-08 Toshiba Corp 光ディスクのラベル記録方法およびこの方法を用いる装置
US10853266B2 (en) * 2015-09-30 2020-12-01 Pure Storage, Inc. Hardware assisted data lookup methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734432A1 (de) * 1977-07-29 1979-02-08 Dietmar Ruby Magnettonbandgeraet zur aufnahme und wiedergabe von stereophonen und monophonen tonsignalen
DE2907834A1 (de) * 1979-02-28 1980-09-04 Polygram Gmbh Verfahren zur digitalen aufzeichnung von analog-signalen, insbesondere audio-signalen sowie zur analogen wiedergabe dieser digital aufgezeichneten signale
FR2458874A1 (fr) * 1979-06-13 1981-01-02 France Etat Systeme d'enregistrement d'informations de pietage sur une bande magnetique de magnetoscope
EP0044713A1 (de) * 1980-07-17 1982-01-27 Sony Corporation Schaltungsanordnungen zur Verarbeitung digitaler Daten
GB2080997A (en) * 1980-07-26 1982-02-10 Sony Corp Method and apparatus for recording digitized information on a record medium
EP0074841A2 (de) * 1981-09-14 1983-03-23 Sony Corporation Aufzeichnen und Verwenden von Markierinformationen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794737A (fr) * 1972-02-18 1973-05-16 Ibm Systemes d'enregistrement de signaux digitaux
US3932894A (en) * 1974-03-14 1976-01-13 International Business Machines Corporation Magnetic record member for use with rotating head magnetic recording apparatus
JPS55153159A (en) * 1979-05-15 1980-11-28 Sony Corp Digital signal recorder
JPS5736476A (en) * 1980-08-08 1982-02-27 Sony Corp Pcm signal recorder and reproducer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734432A1 (de) * 1977-07-29 1979-02-08 Dietmar Ruby Magnettonbandgeraet zur aufnahme und wiedergabe von stereophonen und monophonen tonsignalen
DE2907834A1 (de) * 1979-02-28 1980-09-04 Polygram Gmbh Verfahren zur digitalen aufzeichnung von analog-signalen, insbesondere audio-signalen sowie zur analogen wiedergabe dieser digital aufgezeichneten signale
FR2458874A1 (fr) * 1979-06-13 1981-01-02 France Etat Systeme d'enregistrement d'informations de pietage sur une bande magnetique de magnetoscope
EP0044713A1 (de) * 1980-07-17 1982-01-27 Sony Corporation Schaltungsanordnungen zur Verarbeitung digitaler Daten
GB2080997A (en) * 1980-07-26 1982-02-10 Sony Corp Method and apparatus for recording digitized information on a record medium
EP0074841A2 (de) * 1981-09-14 1983-03-23 Sony Corporation Aufzeichnen und Verwenden von Markierinformationen

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF THE AUDIO ENGINEERING SOCIETY, vol. 28, no. 9, September 1980, pages 618-620,622,624, New York (USA); *
THE BKSTS JOURNAL, vol. 62, no. 11, November 1980, pages 570-580, London (GB); *
THE SMPTE JOURNAL, vol. 92, no. 5, May 1983, pages 577-582, Scarsdale, N.Y. (USA); *
WIRELESS WORLD, vol. 80, no. 1462, June 1974, pages 211-214, Haywards Heath (GB); *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192445A2 (de) * 1985-02-15 1986-08-27 Sony Corporation Aufzeichnungsverfahren und Aufzeichnungs- und/oder Wiedergabegerät
EP0192445A3 (en) * 1985-02-15 1988-09-14 Sony Corporation Recording methods and recording and/or reproducing apparatus
EP0216293A2 (de) * 1985-09-21 1987-04-01 Deutsche Thomson-Brandt GmbH Verfahren zur Aufzeichnung eines Signals auf einem Magnetband
EP0216293A3 (en) * 1985-09-21 1989-02-01 Deutsche Thomson-Brandt Gmbh Process for recording a signal on a magnetic tape
EP0236009A2 (de) * 1986-02-26 1987-09-09 Sony Corporation Digitale Datenkodierung
EP0236009A3 (en) * 1986-02-26 1988-10-26 Sony Corporation Coding digital data
WO1990004214A1 (en) * 1988-10-07 1990-04-19 Eastman Kodak Company Film information exchange system using dedicated magnetic tracks on film
US5130745A (en) * 1988-10-07 1992-07-14 Eastman Kodak Company Film information exchange system using dedicated magnetic tracks on film
DE4033993A1 (de) * 1989-10-27 1991-05-02 Pioneer Electronic Corp Aufzeichnungsmedium fuer digitale informationssignale und dafuer geeignete abspielvorrichtung
WO1991010997A1 (en) * 1990-01-19 1991-07-25 Hewlett-Packard Limited Storage of compressed data
US5280600A (en) * 1990-01-19 1994-01-18 Hewlett-Packard Company Storage of compressed data with algorithm
EP0535300A1 (de) * 1991-09-30 1993-04-07 Pioneer Electronic Corporation Digitales Aufzeichnungs- und Wiedergabeverfahren
US5296977A (en) * 1991-09-30 1994-03-22 Pioneer Electronic Corporation Digital recording/reproducing method in which digital control codes are simultaneously recorded/reproduced with analog info to enhance analog recording/reproduction
WO2013097793A1 (zh) * 2011-12-29 2013-07-04 华为技术有限公司 一种片上多核数据传输方法和装置

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GB2145555B (en) 1986-11-05
GB8323112D0 (en) 1983-09-28
JPS60107771A (ja) 1985-06-13
GB8421360D0 (en) 1984-09-26
GB2145555A (en) 1985-03-27

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